EDIT: Also, I have no idea what you're doing, but be sure to read the various discussions on the relative effectiveness of closed loop water cooling vs. high end air cooling. One top contender that I've been looking at is the Noctua NH-D14 120mm & 140mm SSO CPU Cooler.
EDIT: Also, I have no idea what you're doing, but be sure to read the various discussions on the relative effectiveness of closed loop water cooling vs. high end air cooling. One top contender that I've been looking at is the Noctua NH-D14 120mm & 140mm SSO CPU Cooler.